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Susanna Walter

Adjunct Professor

I鈥檓 a gastroenterologist with a strong interest in exploring the complex interactions between the brain and gut, particularly in patients with functional bowel disorders and visceral pain.

Gut feelings

We are a multidisciplinary research group comprising clinicians, neuroscientists, and preclinical researchers.

Susanna Walter, BKV and Maria Engstr枚m, HMV.Susanna Walter, BKV (to the right) and Maria Engstr枚m, HMV (to the left).
Together with the clinical neurogastroenterology team of the University Hospital in Link枚ping we study several aspects of the brain-gut-microbiome axis in relation to symptoms and treatments.

Our aims are to understand how leaky gut and other peripheral alterations are related to functional and structural brain alterations. We aim to find new pathophysiological insights, biomarkers and treatment predictors for different patient groups in the field of neurogastroenterology.

Publications

  • Irritable bowel syndrome in women: Association between decreased insular subregion volumes and gastrointestinal symptoms. Barazanji et al. Neuroimage Clin.
  • Vasoactive intestinal polypeptide plasma levels associated with affective symptoms and brain structure and function in healthy females. Simon RA et al. Sci Rep. 2021.
  • Interactions between gut permeability and brain structure and function in health and irritable bowel syndrome. Witt ST et al. Neuroimage Clin. 2019.
  • Elucidating the putative link between prefrontal neurotransmission, functional connectivity, and affective symptoms in irritable bowel syndrome.Icenhour A et al. Sci Rep. 2019 Sep.
  • Anorectal function and symptoms 6 months after robot-assisted laparoscopic radical prostatectomy: a single-center study. Theodoros Psarias, Susanna Walter, Martin Holmbom, Khayoun Issa, O Hallböök. Scandinavian J urology. May 2024. PMID: 38738961
  • Defecation symptoms in primary health care patients with irritable bowel syndrome. Jenny Sjödahl, Anna Ingemansson, Tetyana Bureychak, Anna-Karin Norlin, Michael P Jones, Åshild Faresjö, Susanna Walter. Scand J Gastroenterol.2024. PMID: 37612888
  • Defecation symptoms in relation to stool consistency significantly reflect the dyssynergic pattern in high-resolution anorectal manometry in constipated patients. Anna Ingemansson, Susanna A Walter, Michael P Jones, Jenny Sjödahl. J clin Gastroenterology 2024. PMID: 36730549
  • Acute psychological stress increases paracellular permeability and modulates immune activity in rectal mucosa of healthy volunteers. Linda Gerdin, Ana M González-Castro, Ann-Charlott Ericson, Susanna Walter, Mats Persborn, Javier Santos, Åsa V Keita, Maria Vicario, Johan D Söderholm. United European Gastroenterol J. 2023 Feb;11(1):31-41. PMID: 36314901

Latest publication in LiU DiVA

2025

Bjarki T. Alexandersson, Michael P. Jones, Anna Forsberg, Charlotte R. H. Hedin, Ellionore Jarbrink-Sehgal, Susanna Walter, Nicholas J. Talley, Lars Agreus, Anna Andreasson, Peter T. Schmidt (2025) Neurogastroenterology and Motility (Article in journal)

Organisation

Teaser image for the division II at BKV.

Division of Inflammation and Infection (II)

The Division of Inflammation and Infection (II) includes clinical subject areas such as Immunology, Rheumatology, Pathology and Microbiology.

Department of Biomedical and Clinical Sciences (BKV)

What characterizes the Department of Biomedical and Clinical Sciences (BKV) is the wide breadth of research and education. BKV is one of the largest departments at LiU with affiliation mainly to the Faculty of Medicine and Health Sciences.

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